trudel



(NoModel.)

2 Sheets-Sheet 1. HL'TRUDEL. FIRE ALARM HUT.

Patented De. 11,1894.

(No Model.)

Z'Sheets-Sheet 2. H. TRUDEL. FIRE ALARM HUT.

Patented Dc. 11", 1.894.

ms MORRIS PETERS co.. Pnocnumo.. wAsr-xmmou, D c.

UNITED STATES;

"PATENT OFFICE.

HENRI-TRUDEL, OaF MQ'N'PREAL, CANADA.

Fl las-.ALARM Hun'.

SPECIFICATION. forming part of Letters,v BatentfNof 530,808, ,datedDecember 11., 1894.

Application ledeptem'ber 17j 'L 394. Serial No. 523:242- (NU mdemFire-Alarm Hut, whereby whoever ringsa-n' electric ire-alarm remainsclosed up in the-h ut;

the object of saideinvention beingv to reduce the number of falsealarms, said;alarm-hutL being composed of a hut or cell of suitable formkept closed through a mechanicalcombina# l tion 0f elements, of whichthe'foll0wing1is'a specification.

My invention relates to a hut' or cell"- provided with a peculiarmechanism toV retain the door thereof closed against; anyy persontherein who would ringa fire, alarm,` until somebody possessing ayproper key` releases the locking device and opensthe-d'oor to ascertainfrom said person wherethefire is 1o'- cated.

Myinvention willr rst be described in connection withthe accompanyingdrawings and then be pointed out in theclair'ns.l

In said drawings Figure l representsan external elevation of'ahutcontaining my invention. of the same showing one of the sidesiofthe hut and parts ofthe mechanism of'said-finvene tion. bracket attachedtothe hut and infwhichthe main leverwhich operatesthemechanism of saidinvention is permitted to'm'ove up and down. Fig. 4 is a perspectiveview offtheinv terior of the hut showing vthe mechanism of theinvention. Fig. 5 is an internal view', of the front part of thefhutshowing alock partly i broken away on-the inner faceofi tlie'door,r` anda portion ofthe mechanismplaced-onlthat side ofthe hut. Fig. Gisanexternalgeleva tion of a portion of one of thesides of thehutl lshowing a metal plate with ahinge 4attl'fle bol?` tom, and a staple andpadlock atthetop to secure the fastening latch ofthedor'offthe hut. Fig.7 is a perspective view ofv 'an-.angui' lar stop-boltand its operatingspring,l to arrest the motion'of theoperating lever.

The mechanism whichis shown' attheb'otf tom of the hutiscovered'witha'ioorordouble l a a i 5o bottom; the mechanismen thelefthandjwall oisf afvertical'slot 1nthebracketm into zoo Fig. 2 is atransverse vertical section Fig.`3 is a side elevation of'javertical ofthe-hutis coveredfby 'apartitiom and-the lolck'which contains thecoggedfplate on theinside face,l of the door -ofy the hut-is .equallyprotectedby acoverfin order-t0 exclude all ac-v cessv to Athemeva-ble-parts:of=said mechanism.l

the' hut,A and'ibfare' the -sides of the same.- c represents the bottomof the hutv upon whichthefii-rst portion ofthe mechanismY is mounted:

dis a floor or double bottomupon Which'the operator is admitted `whenitis wanted to set lthe mechanism ofthe firel alarmihutfin motion;butftheelectrical portion of-said mech-- lanism is not shown as it formsno, part of myfinvention.

e is the roof of the hut or cell.

f isa horizontal sliding leveriwhichgisconnected"through--apivotfwith:the lower part of ,therdoorfandl-isfprovidedat-the opposite end' with aspring j which hastheeffect Ofantoymatically closin-gthe` door of the hut. This lever-isconnectedby means of abolt jzltova horizontal 'levert placedlat arightangle above it, andfthis-'Yboltj2 is secured to the lever i'and-'isreceived'in' a slot f 2Vvhichiscutinto the slidinglever f topermitthe opening andi closingr-ofythe door; bu'ttheend-of :the slot f2f striking the boltj2 pushes the lever 'L' laterally.

his a'supportingblock upon whichthe lever-vl rests. Said lever-isretained by a pivot $15? to 'theblock Yh upony which it has a lateralreciprocatingmotion.

jis the spring which, by pulling on the isliding leverf 'has the effectVof au to matically closing the Adoor of' thehut. y cis another springwhich' hasl one end se- ,fclured-,to ltheleverz' and -is-intended A'totbring 'said'lleve'r fi back -toits norma lposition-when fthe d'oorfofthehutis being closed. Z` isa shaft with-a crank endlet into a slot finitheqlever i where-it can travel ashort disvtance and'receivefromsaidlever i a semi-rotary.' lateralmotion.

'm is a. vertical bracket to supportthe shaft QZ iin bearings attachedto said bracket and also certainl other'piecesl of the mechanisml @which*will vbehereinafter mentioned. i n'lare'the bearings which supporttheshaft Z;

In said drawings aff represents the door of" which a lever 1J intendedto operate the locking devices, travels. Said lever when brought downinto the slot o, sets in motion the mechanism of the alarm box 7c theknob or hook of which it catches when being let down in the slot, andsets also in motion the other pieces of the mechanism which constitutethe properly so called lock.

q is a handle attached to the end of the leverp to bring the same downwithin the slot o.

r is a block supporting the lever p where said lever is retained by apivot and is allowed to have a semi-rotary motion.

s is a rod connecting the above described leverp with the bolt or latcht of the lock.` Said bolt or latch is pivoted upon a vertical rod asupported by a pivot at its lower end.

u is a cogged or toothed plate which is contained in a lock case yattached to Athe door, and into which the end of the latch enters intoengagement when the lever p is lowered in the slot o.

u is a spring having one end attached to the rod s to bring the latch tback into its normal position when the door a of the alarm hut is openor free.

a; is a spring placedin the lock case at the back of the toothed plate uto force it against the latch t.

y is the lock case containing the toothed plate u.

z is a covering plate placed as a protection over .the lock case y inorderthat the pieces which it contains may not be reached.

a. is the rod pivoted at its lower extremity and which moves back andforward in a guide bar b at the upper end. Said bar guides the motion ofthe upper part of the rod a.

c is a strap pivoted to the rod a above the latch t, and whichconnectssaid rod ct with a metal plate d placed on the outer face ofdone of the sides of the lire alarm hut,the object of said plate d beingto allow the latch t to be set free again and out of the cogs of thetoothed plate u when it is necessary to open the door a of the hut. Theabove mentioned strap c is jointed at both ends.

d is a plate placed on the outer face of the cell and contains a mortisewhich has a cap at the end of the strap c' and said plate d is moreoverjointed at its lower extremity.

c' is a staple into which the hasp of a padlock is adapted to bereceived in order to hold the plate cl firmly until somebody, by pullingthe plate backward, lets free the latch t which was in engagement withthe cogged plate u. The plate d remains locked at all times except whenit isv desirable to disen gage the latch t as hereinabove stated.

f is a padlock to fasten the plate d when it is closed, said padlockbeing removed when it is desirable to let free the latch t.

g is a knob which is placed on the plate cl to pull upon the same whenit is wanted to disengage the latch t from the cogged plate u.

h is a double flat spring placed in a slot cut at the back of thebracket m to press forward a stop-bolt i. Said stop-bolt has one of itsends passing horizontally through a mortise in the bracket m, the end ofwhich crosses the slot o and normally prevents the letting down of thelever p.

j is a cap secured to the walls of the hut over a mortise which receivesthe rear end of the stop t'.

k represents in the form of a simple block, an electric tire alarm boxand its position in the cell alongside the mechanism which constitutesthe present invention.

Z is a traveling blade alongside of the bottom edge of the door andthrough which the sliding lever f passes, and which follows its lateralmotion; the object of this blade beingr to prevent the introductionunder the floor d of anything which would obstruct the mechanism placedthere and would impede its action.

m is a guide block to which the lower part of the rod o. is attached bya pivot and which allows an oscillating motion of the rod a itself.

n is a double crook constituting a crank upon the rod Z which is to pushbackward the stop t in order to remove its obstructing end from the sloto and allow the lever p to be brought down when it is necessary tooperate the entire locking device.

The object of the hereinabove described invention is to reduce as muchas possible the frequency of false tire alarms by detaining in the hutby improved means the party who desires to ring such false alarms, untilsomebody provided with a key to open the padlock comes to the cell toascertain by inquiring from the person therein the location of the re.Until such moment whoever rings an alarm is necessarily detained in thehut and must justify his presence at such place when the policeman orfireman arrives to open the door of the hut.

The operation of the device is as follows: When the door a, is partly orcompletely open the stop vl is through the action of the double spring hbrought forward as indicated in drawings Fig. 3, so as to project in thesloto in the path of the lever p, thereby preventing the lowering ofsaid lever p; but as soon as the door ct of the hut is completely closedby the action of the sliding lever f and its spring j, the stop i ispushed backward by the action of the double crank n and the slot o isthereby free of obstruction. Then by lowering the lever p, the rod s ismade to ascend and the end of the latch t is thrown into engagement withthe toothed plate u which is contained in the lock case y. To set thelatch t free it becomes necessary to remove the padlock f from theexterior, and to pull the plate d', which brings with itself, throughthe agency of the strap c the latch t, and the door a is now set freeand can be pushed open.

Having now fully described my invention, I claim- 1. In a tire alarm hutthe combination of its IOO IIO

door having a lock casey a plate u therein having a toothed edge andforced laterally by a spring, with a pivoted rod a', a latch t piv. otedto said rod, a connecting rod s having its lower` end pivoted tothelatch and a pivoted lever q in engagement with the upper end of saidrod substantially as described.

2. In a fire alarm hut the combination of its door and its lock casehaving therein a plate provided with a toothed edge, .a pivoted rod a',a latch pivoted to said rod, a connecting rod c' having one end pivotedto said rod,a metal strap d hinged to the outside of the hut andiiexibly united to the opposite end of said connecting rod substantiallyas'described..

3. In a fire alarm hut the combination of its door, the lock case havingtherein aplate pro;

vided with a toothed edge, the rodjaf, a latch pivoted to saidrod, theconnecting rod c having one end pivptedalso to said rod and the otherend to a metal plate d', said plate being hinged to the outside of thehut and having a mortise in its upper portion, a staple received in saidmortise, and a padlock having its hasp received in said staplesubstantially as described.

4. In a fire alarm hut the combination of its door, its lock case, thepivoted latch t in engagement with said lock case, a rod s having oneend pivotally secured to said latch,and a.

lever p having one end pivotally connected to thefopposite end of saidrod, with ayieldingly retained lever c' having one end adapted toarrest-the descent of the lever p substantially as described.

5. In a Iire alarm hut the combination of its door, its lock, a pivotedlatch in engagement with said lock, and the pivoted lever p connected tolsaid latch, with the horizontal slotted lever f having one end pivotedto the bottom of the door of the hut, the pivoted lever t' having oneend connected with the slot of the lever f and the opposite end providedwith a slot, a crank shaft Z having one end received in said slot, andthe stop bolt '11 oppo. site a crank portion of said shaft substantiallyas described.

6. In a lire alarm hut the combination of its door, the door closinglever fand spring j having one end attached to said lever, with theblade Z alongside of the bottom edge of the door and havingtheleverfpassing therethrough substantially as described. l

Signed by me this 13th day of September, 1894.

HENRI TRUDEL.

Witnesses A. PRFONTAINE, J. E. H. BENOIT. f

